Not really what you're asking for, but if you have a low resolution image (but high-quality: no blur, artifacts, etc.) you can upscale the image using a super-resolution AI: http://bigjpg.com/ or http://waifu2x.udp.jp/. Both work very well with anime/manga images.

dumytru wrote:Not really what you're asking for, but if you have a low resolution image (but high-quality: no blur, artifacts, etc.) you can upscaleสล็อต the image using a super-resolution AI: http://bigjpg.com/ or http://waifu2x.udp.jp/. Both work very well with anime/manga images.